兰州重离子加速器冷却储存环kicker磁铁设计  

kicker magnet design of HIRFL-CSRm

作　　者：马力祯[1] 韩少斐[1] 何源[1] 王玥[1] 张军辉[1] 高大庆[1] 袁平[1] 原有进[1] 夏佳文[1] 

机构地区：[1]中国科学院近代物理研究所

出　　处：《强激光与粒子束》2006年第1期147-150,共4页High Power Laser and Particle Beams

基　　金：国家杰出青年科学基金资助课题(10325522);同步辐射博士生创新中心研究生创新基金资助课题

摘　　要：介绍了兰州重离子加速器冷却储存环(HIRFL-CSR)CSRm引出kicker磁铁的物理设计、参数计算以及结构设计和加工。为了减小电感,使上升时间达到要求,CSRm引出kicker磁铁采用分布式的传输线方案,同时将无感电容与磁铁并联以满足匹配的问题。磁铁用单匝线圈和铁氧体铁芯来降低电感、减少涡流损耗,并采取两台电源成对供电、导体一端共地的结构形式消除杂散电感和轴向场,这种方式不但消除了过桥的不利影响,而且可通过调节导体间距离方便的调节磁场均匀区宽度和磁铁电感。完成设计后磁铁电感小于1μH,在140 mm范围内磁场均匀度好于±0.5%,最高磁场达到0.038 T,最大峰值激磁电流约为2.5 kA。The theoretic design, the 2-D magnetic field calculation and the electrical calculation of a kicker magnet for CSRm extraction are described as well as the construction design and the manufacture of some key parts. In order to decrease the additional inductance of the magnet, a one-turn coil and ferrite cores are used in the magnet. Each pair of the magnets are powered by a pair of pulse power supplies. The designed inductance is less than 1μH and the field homogeneity is better than ±0.5% at the peak value of 0. 038 T. The magnet meets all of the strict requirements.

关 键 词：kicker磁铁 铁氧体 电感 磁场分布 

分 类 号：TL503.9[核科学技术—核技术及应用]